EP 0116875 A1 19840829 - Electromagnetic flowmeter and method for fabricating an electrode assembly for such a flowmeter.
Title (en)
Electromagnetic flowmeter and method for fabricating an electrode assembly for such a flowmeter.
Title (de)
Elektromagnetischer DurchfluBmesser und Verfahren zur Herstellung einer Elektrodenstruktur für einen derartigen DurchfluBmesser.
Title (fr)
Débimètre électromagnétique et méthode pour la fabrication d'une structure d'électrode pour un tel débimètre.
Publication
Application
Priority
US 46771183 A 19830218
Abstract (en)
[origin: US4565619A] A nonporous composite electrode, particularly suitable for use in electromagnetic flowmeters, includes a non-metallic, electrically conductive element consisting of a fused mass of polymeric material, such as perfluoroalkoxy (pfa) fluoropolymer, and carbon fibers. The electrode is fabricated by stacking alternating layers of polymeric film and carbon fiber paper, subjecting the assembly to sufficient heat and pressure to intermix the two components and bond them into a coherent mass, and fusing the resultant composite material onto a mounting pin. Using a polymeric material compatible with the polymeric liner of an electromagnetic flowtube allows the finished electrode to be fused into the liner, again by application of heat and pressure, so as to achieve a seamless interface. This configuration virtually eliminates process fluid leaks around the electrode, while the electrode structure itself exhibits exceptional high temperature stability and corrosion resistance.
IPC 1-7
IPC 8 full level
G01F 1/58 (2006.01)
CPC (source: EP US)
G01F 1/584 (2013.01 - EP US)
Citation (search report)
- DE 2950039 C2 19821125
- GB 2083779 A 19820331 - ROLLS ROYCE
- EP 0086639 A1 19830824 - DU PONT [US]
- GB 2047409 A 19801126 - DAVIES P M
- US 3746896 A 19730717 - GRUNER H
- US 4337139 A 19820629 - GESTAUT LAWRENCE J, et al
- US 4337140 A 19820629 - SOLOMON FRANK
- US 4339322 A 19820713 - BALKO EDWARD N, et al
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
EP 0116875 A1 19840829; EP 0116875 B1 19880629; EP 0116875 B2 19920129; AU 2311884 A 19840823; AU 561502 B2 19870507; CA 1220819 A 19870421; DE 3472449 D1 19880804; FI 75045 B 19871231; FI 75045 C 19880411; FI 840576 A0 19840214; FI 840576 A 19840819; NO 840605 L 19840820; US 4565619 A 19860121
DOCDB simple family (application)
EP 84100885 A 19840127; AU 2311884 A 19840106; CA 447765 A 19840217; DE 3472449 T 19840127; FI 840576 A 19840214; NO 840605 A 19840217; US 46771183 A 19830218